Table 1 Clavien-Dindo classification of morbidity for complication

Grade I

Any deviation from the normal postoperative course without the need for pharmacological treatment or surgical, endoscopic and radiological interventions

Allowed therapeutic regimens are: drugs as antiemetics, antipyretics, analgesics, diuretics and electrolytes and physiotherapy. This grade also includes wound infections opened at the bedside

Grade II

Requiring pharmacological treatment with drugs other than those allowed for grade I complications

Blood transfusions and TPN1 are also included

Grade III

Requiring surgical, endoscopic or radiological intervention

 IIIa

Intervention not under general anesthesia

 IIIb

Intervention under general anesthesia

Grade IV

Life-threatening complication (including CNS complications) or requiring IC/ICU-management

 IVa

Single organ dysfunction (including dialysis)

 IVb

Multi-organ dysfunction

Grade V

Death